HERONS FORMULA / CONSTRUCTION

The perimeter of an equilateral triangle is 60 cm. Find the length of its sides.

• 30 cm
• 20 cm
• 15 cm
• 10 cm

Tags

CCSS.3.MD.D.8

Let a,b,c are the sides of a triangle.Then Semi perimeter S is

• $\frac{a\ +\ b\ +\ c}{2}$

• $\frac{a\ +\ b\ +\ c\ }{3}$

• a + b + c

• abc

Tags

CCSS.HSG.CO.C.10

CCSS.HSG.SRT.B.4

Which of the following is Heron's Formula for finding area of triangle

•  $A=\sqrt{s\left(s-a\right)\left(s-b\right)\left(s-c\right)}$  

•  $A=\sqrt{s\left(s+a\right)\left(s+b\right)\left(s+c\right)}$  

•  $A=\sqrt{\left(s+a\right)\left(s+b\right)\left(s+c\right)}$  

•  $A=\sqrt{s\left(s\times a\right)\left(s\times b\right)\left(s\times c\right)}$  

Tags

CCSS.6.G.A.1

Find the area of a triangle whose sides are 9m, 12m and 15m

• 64 m²

• 48 m²

• 84 m²

• 54 m²

Tags

CCSS.6.G.A.1

To which of the following triangles, Heron's formula can be used to find the area

• Scalene triangle

• Equilateral triangle

• Isosceles triangle

• All the above

Tags

CCSS.6.G.A.1

What is the area of an equilateral triangle with side 2 cm?

• $\sqrt{6\ }cm^2$

• $\sqrt{8}cm^2$

• $\sqrt{3}cm^2$

• $4\ cm^2$

Tags

CCSS.6.G.A.1

What is the purpose of Heron's formula?

• To find the angle measure in a triangle.
• To find the area of a non-right triangle.
• To find the side length of a triangle.
• To find the height of a triangle.

Tags

CCSS.6.G.A.1

How many values must you have to use Heron's formula?

• 1
• 2
• 3
• 4

Tags

CCSS.6.G.A.1

If the sides of a triangle are 3, 4, and 5, what is the semi-perimeter?

• 3

• 6

• 9

• 12

Tags

CCSS.4.MD.A.3

Using Heron's Formula, find the Area.

• 38.5 in²

• 17.5 in²

• 27.5 in²

• 13 in²

Tags

CCSS.6.G.A.1